WarmFlow WAH 100 Benutzerhandbuch
INSTALLATION & SERVICING
MANUAL FOR
WARMFLOW
OIL FIRED
WARM AIR HEATERS
MODELS
WAH 100/150
WAH 200/300
WAH 500/600
LEAVE THESE INSTRUCTIONS WITH THE END USER
OIL FIRING TECHNICAL
ASSOCIATION FOR THE
PETROLEUM INDUSTRY
OIL FIRING EQUIPMENT
GROUP MEMBER
NATIONAL
ACCREDITATION
OF CERTIFICATION
BODIES
BSI
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G
I
S
T
E
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D
F
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M
CERT. No. FM 29884
BS 5750 PART 2
ISO 9002
ISSUE 2
APR ’99
COMMISSIONING
*THIS APPLIANCE MUST
BE COMMISSIONED
Refer to the commissioning details at rear of this handbook.
SERVICING
To ensure continued reliable operation and
fuel economy it is recommended that the
heater is serviced annually.
Warmflow Engineering Service division
provides an excellent back-up service,
operating a team of Oftec trained
engineers who can meet all the servicing,
commissioning and breakdown
requirements for your appliance.
Simply telephone
TEL: (028) 92620852
FAX: (028) 92620869
E-MAIL: service@warmflow.co.uk
*Failure to commission the heater may invalidate warranty
Contents Page
1.0 Introduction 2
1.1 General Requirements 2
1.2 Installation 2
2.0 User Instructions 3
2.1 Controls 3
2.2 Components 4
3.0 General Data 7
3.1 Technical Data 7
3.2 Dimensions 8
3.3 Installation Clearances 9
3.4 Air Supply 9
3.5 Ductwork 10
3.6 Filters 10
3.7 Electrical Supply 11
4.0 Oil Supply 18
4.1 One Pipe Systems 18
4.2 Two Pipe Systems 19
5.0 Flues 20
6.0 Burners 21
6.1 Components 21
6.2 Oil Supply 22
6.3 Air Damper Adjustment 23
6.4 Electrode Setting 23
6.5 Burner Start Up Cycle 23
7.0 Fault Finding 24
8.0 Burner Spares 25
Page 1
1.0 Introduction
All Warmflow oil fired warm air heaters are suitable for space heating of industrial and
commercial premises. The heaters are automatic in operation and are designed for
free-standing operation, supplied as standard for free blowing via the air discharge
hoods or for connection to a ductwork distribution system. (Contact Warmflow for
details).
The heaters are indirect fired with the products of combustion being carried via the
flue to atmosphere.
Warmflow warm air heaters are designed to burn 28 second redwood No1 (Kerosene
class C2) fuel or with some adjustment 35 second redwood No1 (gas oil class D).
On the 500/600 WAH only gas oil may be used.
The construction of the heaters provides a framework of exceptional strength and
pleasing design, while the integral base pallet guarantees safe stable handling.
All the external panels are of a double skin construction, which insures low surface
temperatures. The panels are all easily removable for complete access to any part of
the heater while the front panel has been split to allow for easy access to the combustion
chamber door.
As standard the burner, heater and controls are covered by the manufacturers parts
and labour warranty valid for 12 months (from the heater date stamp). However this
warranty will be invalidated if the heater is improperly installed or commissioned.
1.1 General Requirements
The installation of the air heater must be in accordance with the following regulations:
BS 5410: Parts 1 & 2: 1977: Code of practice for oil firing.
Current fire regulations.
Current building regulations.
Current IEE wiring regulations.
1.2 Installation
The heaters must be placed on a level non-porous, non-combustible surface which is
capable of supporting the weight of the heater. The heaters must be stable or rigidly
fixed in order to prevent vibration in the appliance, which can lead to the premature
failure of the heater components.
Page 2
2.0 User Instructions
2.1 Controls
The main user controls are the 2 rocker switches on the left hand side of the control panel.
The three position rocker switch at the top is marked ‘Fan Only’, ‘Off’ and ‘Heating On’.
At the ‘Fan Only’ position the heater provides summer time ventilation by delivering
air at the ambient temperature with the burner switched off.
At the ‘Off’ position the heater will not operate.
When the switch is positioned at ‘Heating On’ the heater will fire and deliver warm air
automatically controlled by the fan stat and the room thermostat.
The sequence of firing will be as follows. The burner will go through its ignition cycle
and fire. When the combustion chamber has been sufficiently heated the fan stat will
automatically start the main air fan and discharge warm air through the swivel hoods
or ducting.
When the heater is shutdown either via the room stat or any other controls the burner
will stop firing although the main air fan will continue to operate until the combustion
chamber has been properly cooled down. At which point the fan stat will shut the main
air fan down.
Because of residual heat within the combustion chamber the fan stat may re-start the
main air fan until sufficient cooling of the combustion chamber has taken place.
When the burner is firing the indicator lamp on the panel will be illuminated.
The 2 position rocker switch is marked ‘Automatic’ and ‘Manual’.
At the ‘Automatic’, position the heater will be operated automatically via the time
clock.
When positioned at ‘Manual’ the end user controls the time of operation.
NOTE:WHEN FIRING ORWHEN HOT,THE HEATER MUST NEVER BE SWITCHED
OFF AT THE MAINS SUPPLY.
This is to allow proper cooling of the combustion chamber thus preventing tripping out
on the high limit stat and heat damage to the combustion chamber.
If the high limit fan stat should trip out wait until the combustion chamber has cooled
sufficiently before pressing the red reset button on the fan stat. If the high limit continues
to trip, switch the heater to ‘off’ and contact the Warmflow Service Department.
If the fan motor draws more current than the set limit the overload relay can be reset
by pressing the red button in the control panel.
If the relay continues to trip contact the Warmflow Service Department.
Page 3
2.2 Components
2.2.1 Heater
Fan Stat
Air Inlet Grills
Fan
Fan Motor Base Pallet
Control Panel
Burner
Combustion
Chamber Door
Air Discharge
Hoods
Heat Exchanger
Page 4
2.2.2 Fan Stat (Cover Removed)
2.2.3 Air Heater Control Panel
Fan Override Button (White)
Keep Pulled Out
High Limit Stat Setting Peg (100°C)
Fan on Setting Peg (40°C)
Fan Off Setting Peg (20°C)
High Limit Reset Button (Red)
Overload Relay
Reset Button (Red)
Contactor
5 Pin Mains In Plug
Room Stat
5 Amp Fuse
Burner Cable
3 Position
Rocket Switch
Burner on
Lamp
2 Position
Rocker Switch
Clock
Page 5
2.2.4 Time Clock
2.2.5 Room Stat
Each heater is supplied as standard with
a 7-day analogue clock.
To set the day of the week and the time
turn the minute hand in a clockwise
direction until the correct day and time is
opposite the indicator arrow.
The required on/off switching time is set
by pushing the timing segments to the
outer rim of the clock. The minimum time
period for each segment is 2 hours.
Before operating the heater ensure that
the selector switch is in its mid position.
A room thermostat is mounted on the main
control panel and controls the operation
of the burner. If the heater is not installed
in the area being heated or it has been
fitted with a separate fresh air intake then
an additional remote room thermostat
must be fitted.
Timing Segments Selector Switch
Indictor Arrow
Page 6
3.0 General Data
3.1 Technical Data
WAH MODEL 100/150 200/300 500/600
Output Range kW 29.3-44.0 58.6-88.0 146.5-175.8
Nominal Heat kW 52.4 102.3 206.9
Input (max) Btu 178,800 349,000 705,900
Nominal Heat kW 44.0 88.0 175.8
Output (max) Btu 150,000 300,000 600,000
Nominal combustion efficiency gross % 84 86 85
Burner Riello RDB 2 G10 G20s
Head LD3 A G10 G20s
Flue Dia mm 127 152 203
Flue Dia in 5 6 8
Exit Flue Gas Mass Flow Kg/h
Co2 % 11.0 11.0 11.0
Smoke Bacarach 0-1 0-1 0-1 0-1
NFGT °C225 185 195
Nozzle Danfoss or Delevan
(Kerosine) 1.25 x 60°S2.5 x 60°S—
Pump Bar 10 9 —
Pressure psi 145 130 —
Nozzle Danfoss or Delevan
(Gas Oil) 1.0 x 60°S2.0 x 60°S4.0 x 60°S
Pump Bar 13 12.5 13.0
Pressure psi 190 180 190
Approx Fuel L/h 5.2 10.1 20.4
Flow Rate Gal/h 1.14 2.22 4.49
Fan Motor kW 0.37 1.1 2.2
Motor Speed rpm 1,440 1,440 1,440
Running Current Amps 1.8 4.8 5.6
Electrical Supply at 50hz Volts 230 ±6% 1PH 230 ±6% 1PH 400 ±6% 1PH
Fuse Rating (per phase) Amps 5 8 16
Temp Rise °C40 4240
Inlet Air Flow @ 15 C CFM 1,590 2,755 7,355
M3/h 2,700 4,680 12,500
No of Discharge Hoods 2 2 4
Fan Speed (Nominal) rpm 650 900 925
Weight (including burner) Kg 195 360 680
Page 7
MODEL 100/150 200/300 500/600
A1625 1860 2145
B615 790 1020
C950 1090 1445
D1410 1640 1895
E285 375 375
F285 380 380
G280 380 380
H202 260 290
I342 400 430
J900 1095 1190
K127 152 203
3.2 Dimensions
Page 8
Dieses Handbuch passt für folgende Modelle
5
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